Results 91 to 100 of about 311,028 (224)

Review on ASDEX Upgrade operation with tungsten plasma facing components

Nuclear Materials and Energy
With the decision of ITER to start its operation with tungsten as plasma facing material also for the main chamber plasma facing components, the interest in the consequences of the use of W was strongly increased. Although many investigations had already
R. Neu, C. Angioni, V. Bobkov, R. Dux, J. Hobirk, A. Kallenbach, K. Krieger, T. Pütterich, V. Rohde, K. Schmid   +9 more
doaj   +1 more source

Characterization of 3-strap antennas in ASDEX Upgrade

EPJ Web of Conferences, 2017
The response of the local RF current measured at limiters of 3-strap ICRF antenna to variations of power balance and phasing at fICRF=30MHz agrees qualitatively well with EM calculations by TOPICA and RAPLICASOL codes. Measurements of tungsten sputtering
Bobkov Volodymyr, Bilato Roberto, Colas Laurent, Dux Ralph, Faudot Eric, Faugel Helmut, Fünfgelder Helmut, Herrmann Albrecht, Jacquot Jonathan, Kallenbach Arne, Milanesio Daniele, Maggiora Riccardo, Neu Rudolf, Noterdaeme Jean-Marie, Ochoukov Roman, Pütterich Thomas, Tierens Wouter, Zhang Wei   +17 more
doaj   +1 more source

A practical protocol to emulate a reactor scenario on present machines, with application to the ASDEX Upgrade tokamak via predictive modeling

Nuclear Fusion, 2023
In this work, a novel practical strategy to emulate a reactor scenario on present tokamak experiments is presented. A recipe how to scale several relevant parameters from a hypothetical reactor scenario down to present devices is discussed.
E. Fable, P. David, O. Kudlacek, C. Hopf, B. Sieglin, J. Stober, W. Treutterer, M. Weiland, C. Wu, H. Zohm, the ASDEX Upgrade Team   +10 more
doaj   +1 more source

Stationary ELM-free H-mode in ASDEX Upgrade

Nuclear Fusion, 2020
A stationary H-mode without edge localized modes (ELMs) has been recently achieved in the ASDEX Upgrade tokamak by applying central electron cyclotron resonance heating above the L-H power threshold with adequate fueling.
L. Gil, C. Silva, T. Happel, G. Birkenmeier, M. Cavedon, G. Conway, L. Guimarais, T. Pütterich, J. L. Santos, M. Schubert, E. Seliunin, A. Silva, J. Stober, U. Stroth, E. Trier, E. Wolfrum, E. Team   +16 more
semanticscholar   +1 more source

Fast-ion pressure dominating the mass dependence of the core heat transport in ASDEX Upgrade H-modes

, 2021
H-mode plasmas in ASDEX Upgrade (AUG) using different hydrogen isotopes are analysed with respect to their core transport properties. The experimental results are discussed and we present gyrokinetic simulations which are able to reproduce the ...
P. Schneider, N. Bonanomi, C. Angioni, M. Weiland, M. Cavedon, P. David, R. Fischer, P. Hennequin, J. Hobirk, A. Kappatou, B. Kurzan, R. McDermott, U. Plank, T. Pütterich, F. Ryter, M. Willensdorfer, the ASDEX Upgrade team, and the EUROfusion MST1 Team   +17 more
semanticscholar   +1 more source

First SOLPS-ITER modelling of an X-point radiator in ITER

Nuclear Fusion
For the first time, an X -point radiating (XPR) regime using neon (Ne) seed impurity has been obtained in ITER modelling with the SOLPS-ITER code, including fluid drifts.
A. Poletaeva, V. Rozhansky, E. Kaveeva, V. Korzueva, I. Senichenkov, I. Veselova, R.A. Pitts, X. Bonnin   +7 more
doaj   +1 more source

The upgraded ASDEX Upgrade contribution to the ITPA confinement database: description and analysis

, 2021
The ITPA multi-machine confinement database has been recently extended, in particular to account for the effect of the metallic plasma facing components installed in the ASDEX Upgrade and JET tokamaks during the last decade.
F. Ryter, C. Angioni, G. Tardini, G. Birkenmeier, P. David, M. Dunne, R. Fischer, T. Pütterich, J. Schweinzer, J. Stober, the ASDEX Upgrade team, the EUROfusion MST1 team   +11 more
semanticscholar   +1 more source

I-mode in non-deuterium plasmas in ASDEX Upgrade

Nuclear Fusion, 2021
The I-mode confinement regime in non-deuterium plasmas has been investigated in the ASDEX Upgrade tokamak. We report the first experimental observations on the existence and the main characteristics of this regime in hydrogen and helium plasmas and ...
N. Bonanomi, C. Angioni, D. Silvagni, T. Happel, U. Plank, L. Gil, P. Schneider, T. Pütterich, the EUROfusion MST1 team, the ASDEX Upgrade team   +9 more
semanticscholar   +1 more source

ASDEX Upgrade flight simulator development [PDF]

Fusion Engineering and Design, 2019
Abstract Fenix, the ASDEX Upgrade (AUG) flight simulator under development, is based on the Plasma Control System Simulation Platform (PCSSP) developed for ITER, the ASTRA transport code and the SPIDER equilibrium code. Fenix will give a session leader the possibility to check whether the discharge will meet experimental goals prior to execution.
Janky, F., Fable, E., Treutterer, W., Gomez Ortiz, I., Kudlacek, O.   +4 more
openaire   +2 more sources

Extension of electron cyclotron heating at ASDEX Upgrade with respect to high density operation

EPJ Web of Conferences, 2017
The ASDEX Upgrade electron cyclotron resonance heating operates at 105 GHz and 140 GHz with flexible launching geometry and polarization. In 2016 four Gyrotrons with 10 sec pulse length and output power close to 1 MW per unit were available.
Schubert Martin, Stober Jörg, Herrmann Albrecht, Kasparek Walter, Leuterer Fritz, Monaco Francesco, Petzold Bernhard, Plaum Burkhard, Vorbrugg Stefan, Wagner Dietmar, Zohm Hartmut   +10 more
doaj   +1 more source